1. Full inspection of raw materials <br>2. Sampling inspection of semi-finished products in the production process <br>3. Full inspection of finished products <br>4. Physical property inspection: qualified storage, unqualified repai
1. Full inspection of raw materials<br>2. Sampling inspection of semi-finished products during production<br>3. Complete inspection of finished products<br>4. Physical property test: qualified warehousing, unqualified repai
1. Full inspection of raw materials 2. Sampling inspection of semi-finished products in the production process 3. Complete inspection of finished products 4. Physical property inspection: qualified warehousing and unqualified repair.